A5021908690- Listeria monocytogenes in Food Safety
- Salmonella and Campylobacter epidemiology
- Food Safety and Hygiene
- Meat and Animal Product Quality
- Microbial Inactivation Methods
- Escherichia coli research studies
- Viral gastroenteritis research and epidemiology
- Identification and Quantification in Food
- Ruminant Nutrition and Digestive Physiology
- Animal Nutrition and Physiology
- Enterobacteriaceae and Cronobacter Research
- Spectroscopy and Chemometric Analyses
- Essential Oils and Antimicrobial Activity
- Bee Products Chemical Analysis
- Probiotics and Fermented Foods
- Food Waste Reduction and Sustainability
- Food Supply Chain Traceability
- Animal Disease Management and Epidemiology
- Clostridium difficile and Clostridium perfringens research
- Fermentation and Sensory Analysis
- Microbial Metabolic Engineering and Bioproduction
- Food Quality and Safety Studies
- Insect Pest Control Strategies
- Genomics and Phylogenetic Studies
- Microbial Metabolites in Food Biotechnology
Kansas State University
2015-2024
Eastern Regional Research Center
2015
University of Nebraska–Lincoln
2006-2015
University of Georgia
2015
Arkansas Agricultural Experiment Station
1993-2014
United States Food and Drug Administration
1996
University of Tennessee at Knoxville
1991
To describe the frequency and distribution of Escherichia coli O157:H7 in feces environment cow-calf herds housed on pasture.Fecal water samples for 10 farms Kansas.Fecal were obtained monthly throughout a 1-year period (3,152 fecal from 2,058 cattle; 199 samples). was determined, using microbial culture.Escherichia detected 40 3,152 (1.3%) samples, (1.9%) cattle had > or = 1 sample with E coli. Fecal shedding by specific transient; none more than sample. Significant differences not overall...
Abstract A commercial plant extract (prepared from olive, garlic, onion and citrus extracts with sodium acetate ( SA ) as a carrier) was evaluated to extend the viability of yogurt starter probiotic bacteria means enhance shelf life live active culture, nonfat yogurt. Yogurts prepared three different formulas (0.5% extract, 0.25% , or no supplement) cultures (yogurt plus Bifidobacterium animalis Lactobacillus acidophilus both probiotics) were assessed weekly during 29 days storage at 5°C....
Cattle hides are a main source of enterohemorrhagic Escherichia coli (EHEC) contamination beef carcasses. The objectives this study were to (1) determine the prevalence "top 6" non-O157 plus O157:H7 EHEC (EHEC-7) on feedlot cattle and their matched preintervention carcasses; (2) assess agreement among detection methods for these matrices; (3) conduct molecular risk assessment EHEC-7 isolates. Samples from 576 obtained at commercial harvest facility tested by culture-based method polymerase...
This research investigates the potential risk of Salmonella in muffins when contamination is introduced via flour, main ingredient. Flour was inoculated with a 3-strain cocktail serovars (Newport, Typhimurium, and Senftenberg) re-dried to achieve target concentration ~8logCFU/g. The flour then used prepare muffin batter following standard commercial recipe. survival during after baking at 190.6°C for 21min analyzed by plating samples on selective injury-recovery media regular intervals....
Non-typhoidal Salmonella enterica is a pathogen of global importance, particularly in low and middle-income countries (LMICs). The presence antimicrobial resistant (AMR) strains market environments poses serious health threat to consumers. In this study we identified characterized the genotypic phenotypic AMR profiles 81 environmental S. isolated from samples informal markets Cambodia 2018–2019. genotypes were retrieved NCBI Pathogen Detection website (...
Purpose The purpose of the present study was to observe preparation practices both adult and young consumers using frozen, uncooked, breaded chicken products, which were previously involved in outbreaks linked consumer mishandling. also sought behaviors adolescents as home food preparers. Finally, aimed compare handler with those prescribed on product labels. Design/methodology/approach sought, through video observation self‐report surveys, determine if differences exist between consumers'...
The objective of this study was to model the effect temperature, pH and water activity (aw) on growth/no growth response non-O157 Shiga toxin-producing E. coli (STEC). A cocktail six-serogroup STEC inoculated into brain heart infusion broth (BHI) with 48 combinations different aw, medium incubated at one ten temperatures. After 62 days incubation, determined by turbidity plating tryptic soy agar. Binary data (0 [no growth] or 1 [growth]) were fitted a nonlinear logistic regression parameters...
A collaborative study was performed in 18 laboratories to validate use of Rappaport-Vassiliadis (RV) medium the standard culture method for recovery Salmonella spp. from raw, highly contaminated foods and poultry feed. RV made its individual ingredients incubated at 42 degrees C compared with selenite cystine (SC) broth 35 tetrathionate (TT) 43 effectiveness Four artificially (oysters, frog legs, mushrooms, shrimp) feed one naturally food (chicken) were analyzed. The inoculated single...
Hyperspectral imaging (HSI) provides both spatial and spectral information of a sample by combining with spectroscopy. The objective this study was to generate hyperspectral graphs common foodborne pathogens develop validate prediction models for the classification these pathogens. Four strains Cronobacter sakazakii, five Salmonella spp., eight Escherichia coli, one strain each Listeria monocytogenes Staphylococcus aureus were used in study. Principal component analysis kNN (k-nearest...
Vegetables in Cambodia are commonly sold informal markets lacking food safety standards and controls. Current data on microbial contamination of vegetables Cambodian limited. The purpose this study was to investigate Salmonella enterica indicator organisms (Escherichia coli coliforms) the surface fresh Cambodia. Samples loose-leaf lettuce, tomatoes, cucumbers were collected from 104 vendors at four Battambang Siem Reap provinces during rainy dry seasons. Detection methods for S. adapted U.S....
Escherichia coli O157:H7 emerged as a foodborne pathogen in 1982 and can cause three major disease syndromes (hemorrhagic colitis, hemolytic uremic syndrome, thrombotic thrombocytopenic purpura). Outbreaks caused by E. have been linked to ground beef, milk, apple cider, lettuce, radish alfalfa sprouts, water. In 1994, an outbreak of infection was dry, fermented, pork beef salami. response this first implication dry fermented sausage product, the United States Department Agriculture/Food...